In order to keep the tank turret in a stable position during the march, the nonlinear compensation of the system backlash is carried out. The radial basis function (radical basis function, RBF) neural network is used to identify the turret horizontal speed control system, and the dead zone model of backlash is used to represent the backlash link to establish the horizontal simulation gun control system; Simulate the external disturbance, and use the computer to complete the simulation of the control process. The simulation results show that under the given conditions, the error between the horizontal position and the stable position of the turret is always small enough when considering the backlash factor.